2010年3月份,某市市区一周空气质量报告中某项污染指数的数据是:31,35,31,34,30,32,31,这组数据的中位数、众数分别是() A . 32,31 B . 31,32 C . 31,31 D . 32,35 答案:CHe turned on the channel, only ____that the football
match between China and Iraq was over.
A.finding B.to find C.having found D.to be found